<?xml version="1.0" encoding="UTF-8"?><xml><records><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">He, L.</style></author><author><style face="normal" font="default" size="100%">Rong, H.</style></author><author><style face="normal" font="default" size="100%">D. Wu</style></author><author><style face="normal" font="default" size="100%">M. Li</style></author><author><style face="normal" font="default" size="100%">C. Wang</style></author><author><style face="normal" font="default" size="100%">Tong, M.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Influence of biofilm on the transport and deposition behaviors of nano- and micro-plastic particles in quartz sand</style></title><secondary-title><style face="normal" font="default" size="100%">Water Research</style></secondary-title><alt-title><style face="normal" font="default" size="100%">Water Res.</style></alt-title><short-title><style face="normal" font="default" size="100%">Water Res.Water Res.</style></short-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">aqueous solution</style></keyword><keyword><style  face="normal" font="default" size="100%">article</style></keyword><keyword><style  face="normal" font="default" size="100%">bacterium</style></keyword><keyword><style  face="normal" font="default" size="100%">Biofilm</style></keyword><keyword><style  face="normal" font="default" size="100%">biofilm matrix</style></keyword><keyword><style  face="normal" font="default" size="100%">Biofilms</style></keyword><keyword><style  face="normal" font="default" size="100%">Break through curve</style></keyword><keyword><style  face="normal" font="default" size="100%">carboxylic acid</style></keyword><keyword><style  face="normal" font="default" size="100%">Cell membranes</style></keyword><keyword><style  face="normal" font="default" size="100%">cell surface</style></keyword><keyword><style  face="normal" font="default" size="100%">Contrast media</style></keyword><keyword><style  face="normal" font="default" size="100%">controlled study</style></keyword><keyword><style  face="normal" font="default" size="100%">Deposition</style></keyword><keyword><style  face="normal" font="default" size="100%">Deposition behavior</style></keyword><keyword><style  face="normal" font="default" size="100%">elution</style></keyword><keyword><style  face="normal" font="default" size="100%">Escherichia coli</style></keyword><keyword><style  face="normal" font="default" size="100%">Extracellular polymeric substances</style></keyword><keyword><style  face="normal" font="default" size="100%">flow rate</style></keyword><keyword><style  face="normal" font="default" size="100%">humic substance</style></keyword><keyword><style  face="normal" font="default" size="100%">hydrogen bond</style></keyword><keyword><style  face="normal" font="default" size="100%">Hydrogen bonds</style></keyword><keyword><style  face="normal" font="default" size="100%">Ionic strength</style></keyword><keyword><style  face="normal" font="default" size="100%">micro-computed tomography</style></keyword><keyword><style  face="normal" font="default" size="100%">Microplastic</style></keyword><keyword><style  face="normal" font="default" size="100%">microsphere</style></keyword><keyword><style  face="normal" font="default" size="100%">nanoplastic</style></keyword><keyword><style  face="normal" font="default" size="100%">Natural environments</style></keyword><keyword><style  face="normal" font="default" size="100%">nonhuman</style></keyword><keyword><style  face="normal" font="default" size="100%">Osmolar Concentration</style></keyword><keyword><style  face="normal" font="default" size="100%">osmolarity</style></keyword><keyword><style  face="normal" font="default" size="100%">Parallel flow</style></keyword><keyword><style  face="normal" font="default" size="100%">Parallel plate flow chamber</style></keyword><keyword><style  face="normal" font="default" size="100%">Particle size</style></keyword><keyword><style  face="normal" font="default" size="100%">plastic</style></keyword><keyword><style  face="normal" font="default" size="100%">Plastic coatings</style></keyword><keyword><style  face="normal" font="default" size="100%">Plastic particles</style></keyword><keyword><style  face="normal" font="default" size="100%">plastic pollution</style></keyword><keyword><style  face="normal" font="default" size="100%">plastic waste</style></keyword><keyword><style  face="normal" font="default" size="100%">Plastics</style></keyword><keyword><style  face="normal" font="default" size="100%">pollutant removal</style></keyword><keyword><style  face="normal" font="default" size="100%">polysaccharide</style></keyword><keyword><style  face="normal" font="default" size="100%">polystyrene</style></keyword><keyword><style  face="normal" font="default" size="100%">porosity</style></keyword><keyword><style  face="normal" font="default" size="100%">Porous materials</style></keyword><keyword><style  face="normal" font="default" size="100%">priority journal</style></keyword><keyword><style  face="normal" font="default" size="100%">protein</style></keyword><keyword><style  face="normal" font="default" size="100%">Quartz</style></keyword><keyword><style  face="normal" font="default" size="100%">quartz crystal microbalance</style></keyword><keyword><style  face="normal" font="default" size="100%">Quartz crystal microbalance with dissipation</style></keyword><keyword><style  face="normal" font="default" size="100%">Quartz crystal microbalances</style></keyword><keyword><style  face="normal" font="default" size="100%">Quartz sand</style></keyword><keyword><style  face="normal" font="default" size="100%">Repulsive interactions</style></keyword><keyword><style  face="normal" font="default" size="100%">Sand</style></keyword><keyword><style  face="normal" font="default" size="100%">scanning electron microscopy</style></keyword><keyword><style  face="normal" font="default" size="100%">silicon dioxide</style></keyword><keyword><style  face="normal" font="default" size="100%">Sodium chloride</style></keyword><keyword><style  face="normal" font="default" size="100%">Surface roughness</style></keyword><keyword><style  face="normal" font="default" size="100%">X ray microtomography</style></keyword><keyword><style  face="normal" font="default" size="100%">XMT</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2020</style></year></dates><urls><web-urls><url><style face="normal" font="default" size="100%">https://doi.org/10.1016/j.watres.2020.115808</style></url></web-urls></urls><publisher><style face="normal" font="default" size="100%">Elsevier Ltd</style></publisher><volume><style face="normal" font="default" size="100%">178</style></volume><isbn><style face="normal" font="default" size="100%">00431354 (ISSN)</style></isbn><language><style face="normal" font="default" size="100%">English</style></language><abstract><style face="normal" font="default" size="100%">Biofilm, community of bacteria ubiquitously present in natural environment, may interact with plastic particles and affect the transport of plastic particles in environment. The significance of biofilm (Escherichia coli) on the transport and deposition behaviors of three different sized plastic particles (0.02 μm NPs, 0.2 μm MP and 2 μm MP) were examined under both 10 mM and 50 mM NaCl solutions by comparing the breakthrough curves and retained profiles of plastic particles in bare sand versus those in biofilm-coated sand. Regardless of ionic strengths, the presence of biofilm increases the deposition of all three sized plastic particles in porous media. Via employing X-ray microtomography imaging (XMT) and Scanning electron microscope (SEM), we find that the presence of biofilm could narrow the flow path especially near to the inlet of the column and increase the surface roughness of porous media (by decreasing DLVO repulsive interaction), which contributes to the enhanced the deposition of plastic particles. Extracellular polymeric substances (EPS) present on the biofilm are found to contribute to the enhanced deposition of plastic particles. Packed column experiments, quartz crystal microbalance with dissipation (QCM-D) as well as parallel plate flow chamber experiments all show that three major components of EPS, proteins, polysaccharide, and humic substances all contribute to the enhanced deposition of plastic particles. O–H and N–H groups present on cell surfaces are highly likely to form hydrogen bond with plastic particles and increase the deposition plastic particles. Elution experiments show that decreasing solution ionic strength could release small portion of plastic particles from both bare and biofilm-coated sand columns especially from the segments near to the column inlet (with slighter lower percentage from biofilm-coated columns based on the total mass of retained plastics). In contrast, increasing flow rate does not obviously detach the plastic particles that already deposited onto porous media. The results of this study clearly show that the presence of biofilm in natural environment could enhance the deposition and decrease the transport of plastic particles. © 2020</style></abstract><work-type><style face="normal" font="default" size="100%">Article</style></work-type><custom2><style face="normal" font="default" size="100%">32371288</style></custom2><custom7><style face="normal" font="default" size="100%">115808</style></custom7><auth-address><style face="normal" font="default" size="100%">The Key Laboratory of Water and Sediment Sciences, Ministry of Education, College of Environmental Sciences and Engineering, Peking University, Beijing, 100871, ChinaBeijing Institute of Metrology, Beijing, 100029, China</style></auth-address><remote-database-name><style face="normal" font="default" size="100%">Scopus</style></remote-database-name></record></records></xml>